The copolymer Rh complexes were used as catalysts to catalyze the reaction of carbonylation of methanol

by going through methyl acetate to produce acetic acid.They were found to have good heat stability and reactivity.On the basis of the research results by authors in the past

we have depicted the cycle scheme of the whole process of the catalytic reaction

and several kinetic parameters have been evaluated.Then the kinetic parameters of copolymer-Rh complexes of four groups of ligands in catalytic reaction were checked.The caculating value is in accord with the wxperimental value.The mechanism of the catalytic reaction has been proved reasonably and the difference of the several ligands have been discussed.